EP 0037162 B1 19840418 - VACUUM CIRCUIT BREAKER
Title (en)
VACUUM CIRCUIT BREAKER
Publication
Application
Priority
JP 1714880 A 19800214
Abstract (en)
[origin: EP0037162A1] A single-phase or three-phase vacuum power interrupting device comprises a vacuum power interrupter (3) which includes a bell-shaped metallic casing (13), a ceramic insulating circular end plate (14) fitted to the open end of the bell-shaped metallic casing, and a pair of electrical contact rods (18, 20) having electrical contacts (11, 12) and partially extending within the casing, being normally in contact with each other or moving away from each other, and an insulating molded block (2) made of a resin into which the outer peripheral surface of a radially extending portion (13a) of the bell-shaped metallic casing (13) and insulating circular end plate (14) are integrally embedded, whereby the atmospheric creepage distance from the movable electrical contact rod (18) serving as an electrically charged portion is increased so that the atmospheric dielectric strength of the vacuum power interrupter becomes greater and a larger current with higher voltage can be interrupted.
IPC 1-7
IPC 8 full level
H01H 33/66 (2006.01); H01H 33/666 (2006.01); H01H 33/38 (2006.01)
CPC (source: EP US)
H01H 33/666 (2013.01 - EP US); H01H 33/38 (2013.01 - EP US); H01H 33/66207 (2013.01 - EP US); H01H 2033/6623 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE FR GB LI NL SE
DOCDB simple family (publication)
EP 0037162 A1 19811007; EP 0037162 B1 19840418; DE 3163144 D1 19840524; JP S56114234 A 19810908; JP S6327811 B2 19880606; US 4421961 A 19831220
DOCDB simple family (application)
EP 81300506 A 19810206; DE 3163144 T 19810206; JP 1714880 A 19800214; US 23502381 A 19810213